Organization (Details) - USD ($) $ / shares in Units, $ in Billions	Sep. 30, 2023	Feb. 11, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Beneficial interest offering	$ 36.5
Share price (in usd per share)		$ 25.00

Sale Of Stock, Continuous Offering, Beneficial Interest

No definition available.

Name:	bcred_SaleOfStockContinuousOfferingBeneficialInterest
Namespace Prefix:	bcred_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant